CSA Group CSA C504:20 National Standard of Canada Measuring and monitoring industrial and commercial pumping system energy performance REVISED

Preface

This is the first edition of CSA C504, Measuring and monitoring industrial and commercial pumping system energy performance.

CSA Group acknowledges that the development of this Standard was made possible in part by the financial support of BC Hydro, the Canadian Electricity Association (CEA), Hydro Québec, Independent Electricity System Operator, Manitoba Hydro, and Natural Resources Canada (NRCan).

This Standard was prepared by the Subcommittee on Benchmark Energy Factor For Pump Systems, under the jurisdiction of the Technical Committee on Energy Efficiency of Industrial Equipment and Systems and the Strategic Steering Committee on Performance, Energy Efficiency, and Renewables, and has been formally approved by the Technical Committee.

This Standard has been developed in compliance with Standards Council of Canada requirements for National Standards of Canada. It has been published as a National Standard of Canada by CSA Group.

Notes:

1) Use of the singular does not exclude the plural (and vice versa) when the sense allows.

2) Although the intended primary application of this Standard is stated in its Scope, it is important to note that it remains the responsibility of the users of the Standard to judge its suitability for their particular purpose.

3) This Standard was developed by consensus, which is defined by CSA Policy governing standardization — Code of good practice for standardization as “substantial agreement. Consensus implies much more than a simple majority, but not necessarily unanimity”. It is consistent with this definition that a member may be included in the Technical Committee list and yet not be in full agreement with all clauses of this Standard.

4) To submit a request for interpretation of this Standard, please send the following information to [email protected] include “Request for interpretation” in the subject line:

a) define the problem, making reference to the specific clause, and, where appropriate, include an illustrative sketch;

b) provide an explanation of circumstances surrounding the actual field condition; and

c) where possible, phrase the request in such a way that a specific “yes” or “no” answer will address the issue. Committee interpretations are processed in accordance with the CSA Directives and guidelines governing standardization and are available on the Current Standards Activities page at standardsactivities.csagroup.org.

5) This Standard is subject to review within five years from the date of publication. Suggestions for its improvement will be referred to the appropriate committee. To submit a proposal for change, please send the following information to [email protected] include “Proposal for change” in the subject line:

a) Standard designation (number);

b) relevant clause, table, and/or figure number;

c) wording of the proposed change; and

d) rationale for the change.

1 Scope

1.1 Inclusions

This Standard is intended to be used with an industrial or commercial clean-water pumping system with the following characteristics:

a) any application of electrically driven single- and multi-stage rotodynamic pumps;

b) pumping system with a flow range between 20 m3/h to 36 000 m3/h; and

c) all liquids with viscosity up to 25 cSt, provided that ANSI/HI 9.6.7 is used to correct the performance to 1 cSt.

1.2 Exclusions

This Standard is not intended to be used with the following pumping systems:

a) application of positive displacement pumps, defined as a category of pumps where a set volume of liquid is trapped in a chamber and conveyed from the suction side of the pump to the discharge side of the pump through displacement of liquid by a solid component such as a piston, plunger, gear tooth, vane, screw, diaphragm, etc.; and

b) pumping system applications handling shear-sensitive liquids.

1.3 Terminology

In this Standard, "shall" is used to express a requirement, i.e., a provision that the user is obliged to satisfy in order to comply with the Standard; "should" is used to express a recommendation or that which is advised but not required; and "may" is used to express an option or that which is permissible within the limits of the Standard.

Notes accompanying clauses do not include requirements or alternative requirements; the purpose of a note accompanying a clause is to separate from the text explanatory or informative material.

Notes to tables and figures are considered part of the table or figure and may be written as requirements.

Annexes are designated normative (mandatory) or informative (non-mandatory) to define their application.